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Segment Information - Summary of Revenue and Income from Operations of Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Revenue:
Revenue	$ 2,394,706	$ 2,308,098	$ 2,063,257
Income from operations:
Income from operations	200,802	265,204	209,459
Operating Segments [Member] | Retail Operations [Member]
Revenue:
Revenue	2,294,362	2,212,922	2,043,613
Income from operations:
Income from operations	192,487	249,186	207,034
Operating Segments [Member] | Product Manufacturing [Member]
Revenue:
Revenue	222,289	176,273	44,000
Income from operations:
Income from operations	23,420	20,258	6,940
Intersegment adjustments [Member]
Revenue:
Revenue	(121,945)	(81,097)	(24,356)
Income from operations:
Income from operations	$ (15,105)	$ (4,240)	$ (4,515)

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